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https://issues.apache.org/jira/browse/JCR-3943?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Reschke closed JCR-3943.
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> [jackrabbi-aws-ext] Data inconsistency due to race condition during async
> uploads
> ---------------------------------------------------------------------------------
>
> Key: JCR-3943
> URL: https://issues.apache.org/jira/browse/JCR-3943
> Project: Jackrabbit Content Repository
> Issue Type: Bug
> Components: jackrabbit-data
> Reporter: Amit Jain
> Assignee: Amit Jain
> Priority: Major
> Fix For: 2.22, 2.22.0
>
> Attachments: coredata14Nov5Dec.txt
>
>
> There is a race condition when {{LocalCache}} is used where if an upload
> ({{file_u}}) has entered the cache but not the {{AsyncUploadCache}} and a
> simultaneous PurgeJob is running, then the uploaded file {{file_u}} can be
> purged from the cache.
> When the async job ultimately runs it fails silently (S3 client fails to
> calculate the hash because of the missing file), thus leaving dangling
> references in the node store as well as the {{AsyncUploadCache}}.
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